assert response.status_code == 200, response.text
    assert response.headers["content-type"] == "text/html; charset=utf-8"
    assert "window.opener.swaggerUIRedirectOauth2" in response.text


def test_redoc():
    response = client.get("/redoc")
    assert response.status_code == 200, response.text
    assert response.headers["content-type"] == "text/html; charset=utf-8"
    assert "redoc@next" in response.text

    @app.post(
        "/tocallback",
        response_model=List[Item],
        responses={404: {"model": List[Message]}},
    )
    def post_with_callback(item1: Item, item2: Item):
        return item1, item2  # pragma: nocover

    client = TestClient(app)
    response = client.get("/openapi.json")
    data = response.json()
    assert data == {
        "openapi": "3.1.0",